APA ציטוט

Langbein, L. I., & Lichtman, A. J. (1983). Ecological inference. Sage.

Chicago Edition Citation

Langbein, Laura Irvin, and Allan J. Lichtman. Ecological Inference. London: Sage, 1983.

ציטוט MLA

Langbein, Laura Irvin, and Allan J. Lichtman. Ecological Inference. Sage, 1983.